Automatic switch electric sadiron



Oct. 6, 1931. A. PETTlcoRE AUTOMATIC SWITCH ELECTRIC SADIRON 2 SheetsPSheet Filed May 7. 1930 Oct. 6, 1931.

A. PETTICORE AUTOMATIC SWITCH ELECTRIC SADIRON Filed May 7, 195o 2 Sheets-Sheet 2 F L g 4:

INVENroR, Ma@ e'ww BY %afvzw aw f A TTORNEY.

Patented Oct. 6, 1931 PATENT OFFICE ANTHONY PETTICORE, OF SEDBO WOOLLY, WASHINGTON AUTOMATIC SWITCH ELECTRIC SADIRON Application led May 7, 1930. Serial No. 450,418.

My inventionrelates to improvements in automatic switch electric sad-irons and has and is automatically opened as' soon as use of the iron ceases t ough the operation of an automatic switch,

Another objectvof my improvement is to provide an adjustment for said switch Whereby it may be maint-ainedclosed as long as desired.

Another object of my improvement is to provide an adjustment for said switch where- 'y the electric circuit may be maintained open during the use of the iron.

Another object of my improvement is to provide protection to the hand grasping the split iron handle during its use.l Other objects of my improvement will appear as the description proceeds.

attain these and other objects of my improvenient with the mechanism illustrated in y the two sheets of drawings accompanying this specification, and.` forming a part thereof, in which Figure 1 is a side elevation of a sad-iron with my improvement in place thereon, Fig. 2 is a front end elevation of the handle of the iron with the remainder a@ thereofhroken away, Fig. 3 is a cross section of the, handle on the line 3-3 of Fig. 1, and Fig. 4 is a rear end elevation of 1.

Similar characters .refer to similar parts throughout.

Certain parts are broken away to show other parts hidden thereby.

With more particular reference to the designated parts: Sad-iron body 5 has handle no' shank 6 and handle 7 fastened to the shank by boit 8 therethrough with nut a8 thereon. Handie 7 has a fiat top and represents little more than one-half of the usual han-` die; the remaining, or upper art 9 being separate from the lower part Fastened on the bottom of upper handle part 9 is flat 'spring har 10 and guard plate 13 by rivets 14. Near the front end of spring bar 10 is spring loop 11 terminating in dependent end al1 having an opening therein through .usual way.

which bolt 8 is extended with nut a8 thereon clamping spring end all firmly against the front end of the handle shank 6. Near the rear end of spring bar 10 is spring loop 12 with end a12 dependent therefrom. Beneath the head of bolt 8 on the rear end thereof is clamped stop clip 15.

rEhe usual connection plug 16 has 4two halves which are clamped together by holt 17 therethrough retained by nut a17 thereon. The end i12 of the spring bar has an opening therethrough in which is extended bolt 17 to clamp the spring end between bolt head 617 and plug 16. l

The plug is provided with the usual spring G5 contact clamps 18, 18 to 'contact with iron element terminals 19, 19 and complete thev electric circuit between the two cables 20, 20 of the connecting cord and the iron in the Iron socket 21 is linedby guide strip 22 on the interior of its rear wall' to bear against the rear wall of plug 16 .when the latter is in operative contact position and also in open-circuit position in plug socket 21.

The upper end of the rear wall of the socket is extended to form bracket l(L21 in which is fastened horizontal pin 23. On pin 23 is mounted catch loop 24 for oscillation. Loop 24 is disposed to pass over the top ofthe protruding end of bolt 17 to catch the sameand hold plug terminals 18 in electric contact with element terminals 19. Also loop 24 lmay he disengaged from the bolt end by turning the same backward on pin 23 and it may occupy its dotted. osition at 24'l out of engagement with the olt..

Whenloop 24 is disengaged from bolt 17 spring loop 1l reacts 'and movesthe yrear end of top handle part 9 to its dotted position at 9 when further upward movement thereof is stopped by the bearing of bolt head 617 in its dotted position at 617 on 'stop clip 15 vas 'shown in Fig. 1. Then contact clamps 18 are at 18 out of contact kwith 95 element'terminals 19 and the circuit through the cord andv ironl clement is open.

Thedependent flanges a13, (L13 are shaped to fit the contour of the handle 7 and serve to cover the opening between the lower and 10o upper parts of the handle when the latter is at 9 and thus prevent the flesh ofthe operators hand from entering this opening to be pinched when the part 9 is carried down to contact with part 7.

In operation: It is assumed that cables 20, 20 of the cord are connected with a source of electricity, not shown. Then with the operative parts of the iron in the positions illustrated in full lines the electric elements, not shown, with which terminals 19, 19 are connccted in the iron, are heated and the iron is ready for use. This is the same condition which pertains when the usual electric sadiron is connected with the service current by inserting the plug 16. Use ofthe iron may proceed, but, if it is desired to take advantage of the protection provided by my automatic switch, loop 24 is turned down to its position at 24 and the divided parts of the handle are retained in adjacent relation by the grasp of the users hand thus continuing electric contact of terminals 19 and clamps 18` during use. But when use ceases and the hand of the operative releases its grasp of the handle the upper part 9 thereof is carried to its position at 9 by the reaction of spring loop 11 and contact between terminals 19 and clamps 1S is broken and the electric current through the iron is interrupted thus automaticallysaving the fabric from injury on which the iron may have been allowed to remain by the operative.

At times during use of the electric iron it becomes too hot and it is desired to open the circuit therethrough and continue to use the iron. This is attained by turning catch loop 24 back to its full-line position after bolt- 17 has moved to its position at 17 when the bolt will bear on top of the loop and the plug will be retained in its position at 16 with terminals 18 and 19 out of contact and the circuit through the iron open. The iron may thus be continued in use till it is desired to again turn on `the current when loop 24 is turned back and the two parts of the handle again are brought together by the hand grasp of the user and thus the electric circuit through the iron is again established.

It now may be apparent that my automatic electric switch and the controls provided therefor very well serve4 the purposes for l which they are designed and afford convenient safety not found in the ordinary electric sad-iron.

The purpose of the guide 22 in socket 21 is to retain the lower end of plug 16 in rectilinear reciprcation during the circuit making and breaking movements thereof. Upper handle part 9 oscillates about the center of spring loop 11 which would carry the lower y end ofthe plug voutward during'the upward movement of handle 9 and thus prevent the proper alignment of clamps 18 and terminals 19 for reengagement. Spring loop l2 provides the needed freedom for oscillation between plug 16 and sprin bar 10.

Having thus disclose my invention, what I claim as new therein and desire to secure by Letters Patent is,-

An electric sad ironincluding a sad iron base, an electric heating element within said base, front and rear handle Shanks fastened to said base projected upward therefrom, the bottom part of a sad iron handle fastened to the tops of said handle Shanks, the top part of said handle disposed on top of said bottom part thereof, a spring fastened to the front end of said top handle part and to said front handle shank mounting thereby said top handle part for oscillation and tending to separate the said handle parts at the rear ends thereof, an intervening plate fastened to the bottom surface of said top handle part having its edges bent downward adjacent the sides of said bottom handle part covering the opening therebetween when said handle parts are separated by said spring reaction, heating element kterminals projected upward from said base, and an electric contact plug fastened to the rear end of said top handle part disposed for making electric connections with said heating element terminals when said top handle part is tirned down against said spring reaction and for breakingsaid connections when said top handle part oscillates upward under said spring reaction.

ANTHONY PETT'ICORE.

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